Here for the party....
Join Date: May 2009
Location: Somewhere down in Texas....
Re: Performance Upgrades?
You won't gain anything going to 5", outside of a little difference in sound. I had great luck with my 4" mbrp. I plan on going with a 4" diamond eye on my regular cab because I prefer the exit style mainly. 4" with a 5" square cut tip. I've always ran a muffler, don't care for the straight piped splatter sound. I'd ditch the k&n for a 6637 filter setup, and for a chip, whether you go ts 6 position, or hydra...I highly recommend Gearhead tunes.
2015 Chevrolet Tahoe, Crystal Red Tintcoat, LOADED
2014 Ford Mustang GT, 5.0, Race Red, 6 speed